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US 4,919,549 AGranted
Hydrostatic spindle
AssigneeThe Torrington Company
InventorsJames L. Lawson, Ronald A. Peterson
Life of this patent
Estimating the term…
Abstract
The spindle has a sleeve about a fixed shaft. Swing-type bearing pads are attached to the fixed shaft. The bearing pads are lubricated by flowing a lubricant through primary and secondary lubricating holes located in the fixed shaft.
Claims10
A spindle comprising:
- an outer sleeve;
- a non-rotating shaft disposed within said outer sleeve;
- swing-type bearing pads made of metal-elastomer laminated structure containing a metal layer and an elastomeric layer disposed between said outer sleeve and said non-rotating shaft, said bearing pads being attached to said non-rotating shaft;
- and
- a lubricating means for introducing a lubricant between said outer sleeve and said bearing pads, said lubricating means comprising a primary lubricating hole disposed in said non-rotating shaft and secondary lubricating holes disposed between said primary lubricating hole and said bearing pads, such that a lubricant may pass from said primary lubricating hole through said secondary lubricating holes to a clearance space formed between said outer sleeve and said bearing pads.
2 more elements
Dependencies are inferred from the claim text.